{"id":"CVE-2026-104849","published":"2026-10-02T17:17:03.623","lastModified":"2026-10-06T17:17:15.700","description":"Tinypool is a minimal Node.js worker thread pool implementation. Prior to 2.1.2, Tinypool reads filename from a caller-supplied options object in pool.run(task, options) without requiring an own property, so a polluted Object.prototype.filename can replace the intended worker module. Applications are affected only when they pass their own second-argument options object to pool.run(); calls without that argument use the trusted default options object. An attacker who can first pollute the prototype can cause the worker pool to load attacker-selected JavaScript and can read or modify task data with the host process's privileges. This issue is fixed in version 2.1.2.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-94","CWE-1321"],"vendors":[],"products":[],"references":[{"url":"https://github.com/tinylibs/tinypool/commit/f41411a3e23324c674f35a19a3240f7a7c40ffbf","tags":[]},{"url":"https://github.com/tinylibs/tinypool/pull/135","tags":[]},{"url":"https://github.com/tinylibs/tinypool/releases/tag/v2.1.2","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr","tags":[]}],"exploitRefs":[{"url":"https://github.com/tinylibs/tinypool/commit/f41411a3e23324c674f35a19a3240f7a7c40ffbf","tags":[]},{"url":"https://github.com/tinylibs/tinypool/pull/135","tags":[]},{"url":"https://github.com/tinylibs/tinypool/releases/tag/v2.1.2","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr","tags":[]},{"url":"https://github.com/tinylibs/tinypool/security/advisories/GHSA-85c8-ppgw-ccpr","tags":[]}],"hasPoc":true,"ai":null}